Acquired Intangible Assets, Net Carrying Amount

No definition available.

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- Definition

Business Acquisition, Increase, Percentage of Voting Interests Acquired

+ References

No definition available.

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- Definition

Number of Other Businesses Acquired

+ References

No definition available.

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- Definition

Payments to Acquire Businesses, Adjustment

+ References

No definition available.

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- Definition

Payments to Acquire Businesses, Periodic Payment

+ References

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- Definition

Payments to Acquire Businesses, Periodic Payment, Term

+ References

No definition available.

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- Definition

Purchase Of Businesses And Other Investments Net Of Cash Acquired.

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 45

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-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)(4)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

Total revenue reported by the acquired entity for its previous full fiscal year before the business acquisition.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

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- Definition

Carrying amount of equity interests owned by noncontrolling shareholders, partners, or other equity holders in one or more of the entities consolidated into the reporting entity's financial statements other than joint ventures, limited partnerships, operating partnerships or interests held by preferred unit holders.

+ References

No definition available.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Name Accounting Standards Codification

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-Subparagraph (b)

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Business Acquisitions, Goodwill and Acquired Intangible Assets (Narrative) (Details) In Millions, except Per Share data, unless otherwise specified	12 Months Ended										0 Months Ended	12 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended		0 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended		0 Months Ended						0 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 28, 2014 USD ($)	Dec. 29, 2013 USD ($)	Dec. 30, 2012 USD ($) entity	Dec. 28, 2014 Minimum	Dec. 28, 2014 Maximum	Dec. 28, 2014 Bolt USD ($)	Dec. 28, 2014 Oceanscience USD ($)	Dec. 28, 2014 Atlas USD ($)	Dec. 28, 2014 Photon USD ($)	Jul. 01, 2014 Ocean Aero	Oct. 22, 2013 CDL USD ($)	Dec. 29, 2013 CDL USD ($)	Dec. 30, 2012 CDL GBP (£)	Aug. 30, 2013 CETAC USD ($)	Dec. 29, 2013 CETAC USD ($)	Dec. 29, 2013 CETAC USD ($)	Dec. 30, 2012 CETAC USD ($)	Jul. 08, 2013 Nova Research, Inc USD ($)	Jul. 08, 2013 Nova Research, Inc	May 08, 2013 Axiom USD ($)	Dec. 29, 2013 Axiom USD ($)	Mar. 01, 2013 RESON USD ($)	Dec. 29, 2013 RESON USD ($)	Dec. 30, 2012 RESON EUR (€)	Dec. 29, 2013 Other 2013 Acquisitions USD ($)	Aug. 03, 2012 LeCroy USD ($)	Jun. 30, 2011 LeCroy USD ($)	Dec. 30, 2012 Other 2012 Acquisitions USD ($)	Apr. 03, 2012 Optech Incorporated USD ($)	Mar. 31, 2012 Optech Incorporated CAD	Dec. 29, 2013 Optech Incorporated USD ($)	Dec. 30, 2012 Optech Incorporated USD ($)	Apr. 30, 2012 Optech Incorporated USD ($)	Apr. 03, 2011 Optech Incorporated	Nov. 18, 2014 Subsidiaries Bolt USD ($)	Jun. 30, 2014 Subsidiaries Bolt USD ($)	Nov. 18, 2014 Subsidiaries Bolt USD ($)	Oct. 22, 2014 Subsidiaries Oceanscience USD ($)	Dec. 29, 2013 Subsidiaries Oceanscience USD ($)	Aug. 18, 2014 Subsidiaries Atlas USD ($)	Mar. 31, 2014 Subsidiaries Photon USD ($)	Feb. 02, 2015 Subsidiaries Bowtech Products Limited Subsequent Event USD ($)
Business Acquisition [Line Items]
Purchase of businesses and other investments	$ 195.8	$ 128.2	$ 389.2
Business acquisition, share price																																					$ 22.00
Payments to acquire businesses, net of cash acquired						171.0	14.7	5.2	2.9		21.8	21.8		26.4		26.4				4.0	4.0	69.7	69.7		1.4	301.3		87.9	27.9						171.0			14.7		5.2	3.3
Sales reported by acquired entity for last annual period													9.9				24.0							50.8			178.1	98.7		54.7						67.5			6.8
Payments to acquire businesses, periodic payment																				1.3																					0.7
Periodic payment, term																				3 years																					3 years
Equity method investment, ownership percentage										29.70%
Payments to acquire businesses, adjustment															0.4
Percentage of interests acquired																			49.00%															19.00%
Payments to acquire businesses, gross																		4.9																								18.4
Number of other businesses acquired			4tdy_NumberOfOtherBusinessesAcquired
Aggregate number of businesses acquired during period			5us-gaap_NumberOfBusinessesAcquired
Percentage of voting interests acquired																																	51.00%
Ownership percentage by noncontrolling owners																																	49.00%
Equity interest issued or issuable, value assigned																																	49.8
Other noncontrolling interests																															47.3	49.8
Goodwill, net	1,150.6us-gaap_Goodwill	1,037.8us-gaap_Goodwill	990.2us-gaap_Goodwill			128.8	9.0	3.6	1.4			11.9			11.1	11.1					3.4		35.1
Acquired intangibles, net	277.6	270.9
Amortizable other intangible assets, useful lives				1 year	15 years
Amortization expense	32.0us-gaap_AmortizationOfIntangibleAssets	31.5us-gaap_AmortizationOfIntangibleAssets	29.4us-gaap_AmortizationOfIntangibleAssets
Future amortization expense, 2015	30.9
Future amortization expense, 2016	27.7
Future amortization expense, 2017	26.1
Future amortization expense, 2018	23.1
Future amortization expense, 2019	$ 15.2